$ git clone -n https://src.fedoraproject.org/rpms/ghc-config-value.git /var/lib/mock/f45-build-10115-413/root/chroot_tmpdir/scmroot/ghc-config-value
Cloning into '/var/lib/mock/f45-build-10115-413/root/chroot_tmpdir/scmroot/ghc-config-value'...
$ git fetch origin ebb51c62e57bf9e63ab388101e7f685cf375e33c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-config-value
 * [new ref]         ebb51c62e57bf9e63ab388101e7f685cf375e33c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ebb51c6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild